<?php
ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);
$root = realpath($_SERVER['DOCUMENT_ROOT']);
session_start();
function create_member($name, $number, $email)
{
    $root = realpath($_SERVER['DOCUMENT_ROOT']);
    require("$root/config.php");
    try{
        $db = new PDO("pgsql:host=$host;dbname=$database", 
            $user, 
            $password, 
            array(PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION
            ));
    }catch (Exception $e){
        die("Error : ".$e->getMessage());
    }
    // Check if table exitst
    $req = $db->prepare('CREATE TABLE IF NOT EXISTS members (id SERIAL PRIMARY KEY, name varchar(125) NOT NULL UNIQUE, student_number varchar(8) UNIQUE, email varchar(125) UNIQUE)');
    $req->execute();
    if (strlen($name) > 125)
    {
        $_SESSION['error_msg'] .= "Le nom entré est trop long.\n";
    } 
    if (strlen($email) > 125)
    {
        $_SESSION['error_msg'] .= "L'email entré est trop long.\n";
    }
    if (strlen($number) > 8)
    {
        $_SESSION['error_msg'] .= "Votre numéro d'étudiant semble incorrect (il comporte plus de 8 caractères.\n";
    }
    if ($_SESSION['error_msg'] == "")
    {
        try {
            $req = $db->prepare('INSERT INTO members (name, student_number, email) VALUES (?, ?, ?)');
            $req->execute(array($name, $number, $email));
        } catch (Exception $e) {
            $_SESSION['error_msg'] .= $e->getMessage();
        }        
    }
}

$_SESSION['error_msg'] = "";
if (isset($_POST['submit']))
{
    if (isset($_POST['name']) and $_POST['name'] != "")
    {
        $name = $_POST['name'];
        $_SESSION['name'] = $name;
    } else
    {
        $_SESSION['error_msg'] .= "Vous n'avez pas entré de nom.\n";
    }
    if (isset($_POST['number']))
    {
        $number = $_POST['number'];
    } else {
        $number = "";
    }
    if (isset($_POST['email']) and $_POST['email'] != "")
    {
        $email = $_POST['email'];
    } else {
        $_SESSION['error_msg'] .= "Vous n'avez pas entré d'adresse mail.\n";
    }
} else 
{
    $_SESSION['error_msg'] .= "Attention, vous n'avez pas soumis le formulaire d'adhésion.\n";
}

if ($_SESSION['error_msg'] == "")
{
    create_member($name, $number, $email);
}
if ($_SESSION['error_msg'] != "") 
{
    $_SESSION['error_msg'] .= "Veuillez réessayer.";
    header('Location: /join');
} else {
    header('Location: /');
}
?>